Honda XR250R User Manual

59
STARTER DECOMPRESSOR
Excessive decompressor lever free plan will
cause hard starting, and insufficient free play
may cause erratic idling and valve burning.
CAUTION:
 Adjustment must be made for both manual
and kickstarter decompressor.
NOTE:
Adjust the decompressor linkage after
adjusting the valve clearance.
1. Loosen the manual decompressor lock
nut (1) and the manual decompressor
adjusting nut (2).
2. Disconnect the manual decompressor
cable (3) at the decompressor valve lifter
lever (4).
3. 3. Be sure the piston is at the top of the
compression stroke and the T mark is
aligned with the index mark.
4. Measure the tree play at the tip of the
decompression lifter lever. To adjust, loosen
the lock nut (5) and turn the adjusting nut (6).
Free play: 1-3 mm (1/32-1/8 in)
5. Install all parts in the reverse order of
disassembly.
6. Connect the manual decompressor cable to
the lifter lever.
(1) Decompressor lock nut (4) Lifter lever
(2) Decompressor adjusting nut (5) Lock nut
(3) Manual decompressor cable (6) Adjusting nut
(A) Increase freeplay (B) Decrease free play

Honda XR250R Specifications

General

Displacement	249 cc
Bore x Stroke	73.0 mm x 59.5 mm
Compression Ratio	9.3:1
Fuel System	Carburetor
Ignition	CDI
Transmission	5-speed
Final Drive	Chain
Front Suspension	Telescopic fork
Rear Suspension	Pro-Link single shock
Front Brake	Single disc
Rear Brake	Drum
Front Tire	80/100-21
Engine Type	Air-cooled, four-stroke, single-cylinder
Fuel Capacity	9.5 liters (2.5 US gal)